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        // var n = Math.random() ;


        // var m = parseInt(Math.random() * 100) ;




        // 随机产生一个数，判断是不是质数
        // var a = rand(0,100) ;
        // var res = isZhi(a) ;
        // document.write(res) ;


        document.write(isZhi(rand(0,100))) ;

        


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